電腦圖學 Week11

 #Week11

1. week11-1_TRT
2. 安裝freeglut,把lib\libfreeglut.a複製成libglut32.a
3. File-New-Project, GLUT專案 week10-1_TRT
4. 貼上上周的week10-1_glutWireCube_mybody_myArm
5. 的程式碼
   程式碼:
   
1. #include <GL/glut.h>
2. void myBody()
3. {
4.     glPushMatrix();
5.         glColor3f(1,0,0);
6.         glutWireCube(0.6);///myBody()
7. glPopMatrix();
8. }
9. void myArm()
10. {
11.     glPushMatrix();
12.         glColor3f(0,1,0);
13.         glScalef(1,0.4,0.4);
14.         glutWireCube(0.3);///myBody()
15. glPopMatrix();
16. }
17. void display()
18. {
19. glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
20. 
    
21.     myBody();
22.     myArm();
23. 
    
24. glutSwapBuffers();
25. 
    
26. }
27. int main(int argc, char*argv[])
28. {
29. glutInit(&argc, argv);
30. glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
31. glutCreateWindow("week09 Microsoft Visual Studio");
32. glutDisplayFunc(display);
33. glutMainLoop();
34. }
6. 再去做更改增加glPushMatrix(); glTranslatef();        glRotatef(angle++,0,0,1);       glTranslatef(0.15,0,0);       myArm();    glPopMatrix();
   程式碼
1. #include <GL/glut.h>
2. void myBody()
3. {
4.     glPushMatrix();
5.         glColor3f(1,0,0);
6.         glutWireCube(0.6);///myBody()
7. glPopMatrix();
8. }
9. void myArm()
10. {
11.     glPushMatrix();
12.         glColor3f(0,1,0);
13.         glScalef(1,0.4,0.4);
14.         glutWireCube(0.3);///myBody()
15. glPopMatrix();
16. }
17. float angle=0;
18. void display()
19. {
20. glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
21. 
    
22.     myBody();
23.     glPushMatrix();
24.         //glTranslatef();
25.         glRotatef(angle++,0,0,1);
26.         glTranslatef(0.15,0,0);
27.         myArm();
28.     glPopMatrix();
29. glutSwapBuffers();
30. 
    
31. }
32. int main(int argc, char*argv[])
33. {
34. glutInit(&argc, argv);
35. glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
36. glutCreateWindow("week11");
37. glutDisplayFunc(display);
38. glutIdleFunc(display);
39. glutMainLoop();
40. }
    
    

    
    
7. week11-1_obj_gundam__opencv_texture_lighting
8. Setting-Compiler要加入OpenCV相關的 3個設定
9. -compiler的include要加入 C:\OpenCV2.1\include 
   -linker的lib要加入C:\OpenCV\lib
   -linker設定 ,要加入cv210 cxcore210 highgui210
   
   
   
   

   

10. # week11-2_glm_gundam_opencv_texture_lighting

    不要急,這個用 GitHub 下載下來、複製整個目錄、改檔名、改Title

    安裝 OpenCV 2.1 小心! Add PATH,用預設目錄

    重開 CodeBlocks, Setting-Compiler 裡要改3個地方

    
    

    接下來,再把 GitHub 的程式倉庫下載下來, week09-1_glm_gundam_opencv_texture_lighting 拿來用,複製成 week11-2_glm_gundam_opencv_texture lighting

    
    

    有兩種下載法。第1種是用 Git Bash 下指令

    cd desktop

    git clone https://github.com/jsyeh/2024graphicsa

    cd 2024graphica

    start. 開檔案總管,把 week09-1目錄 複製到桌面,再改目錄名

    
    

    第二種作法,在GitHub 網站

    https://github.com/jsyeh/2024graphicsa 點綠色的 Code 的

    Download ZIP 再解壓縮,也能把 week09-1目錄,拉到桌面, 再改目錄名哦!

    File-Open 開桌面 week11-2_glm_gundam_opencv_texture_lighting 裡面的再改 week11-2 glm gundam opencv texture_lighting.cbp

    
    

    開起來後,再改專案的 Title 變成

    week11-2_glm_gundam_opencv_texture_lighting

    

11. # Maya 切割、匯出OBJ

    要有 Autodesk 的帳號,註冊 Maya教育版, 寄學生證認證,就可以用了

    - handA.obj + handA.mtl

    - handB.obj + handB.mtl

12. # 繼續修改 week11-2_glm_gundam_opencv_texture_lighting

13. 把剛剛的 handA.obj handA.mtl handB.obj handB.mtl放到 data目錄

14. 改程式 GLMmodel pmodel = NULL;改成 cpp

    GLMmodel * pmodel= NULL;

    GLMmodel * handA = NULL;

    GLMmodel * handB = NULL;

15. 再做修改 void drawmodel(){...} 複製 2段程式 drawHandA() drawHandB() 裡面的pmodel 也換成對應的 handA 和 handB 一中月
16. 1
17. 1 程式碼:
1. ///先把 week08-1_glm_gundam 的程式貼上來
2. ///等一下, 要再加貼圖的 18行程式
3. #include <opencv/highgui.h> ///使用 OpenCV 2.1 比較簡單, 只要用 High GUI 即可
4. #include <opencv/cv.h>
5. #include <GL/glut.h>
6. int myTexture(char * filename)
7. {
8. IplImage * img = cvLoadImage(filename); ///OpenCV讀圖
9. cvCvtColor(img,img, CV_BGR2RGB); ///OpenCV轉色彩 (需要cv.h)
10. glEnable(GL_TEXTURE_2D); ///1. 開啟貼圖功能
11. GLuint id; ///準備一個 unsigned int 整數, 叫 貼圖ID
12. glGenTextures(1, &id); /// 產生Generate 貼圖ID
13. glBindTexture(GL_TEXTURE_2D, id); ///綁定bind 貼圖ID
14. glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); /// 貼圖參數, 超過包裝的範圖T, 就重覆貼圖
15. glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); /// 貼圖參數, 超過包裝的範圖S, 就重覆貼圖
16. glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); /// 貼圖參數, 放大時的內插, 用最近點
17. glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); /// 貼圖參數, 縮小時的內插, 用最近點
18. glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, img->width, img->height, 0, GL_RGB, GL_UNSIGNED_BYTE, img->imageData);
19. return id;
20. }
21. #include <GL/glut.h>
22. #include "glm.h"
23. GLMmodel * pmodel = NULL;
24. GLMmodel * handA = NULL;
25. GLMmodel * handB = NULL;
26. void drawhandA(void)
27. {
28. if (!handA) {
29. handA = glmReadOBJ("data/handA.obj");
30. if (!handA) exit(0);
31. glmUnitize(handA);
32. glmFacetNormals(handA);
33. glmVertexNormals(handA, 90.0);
34. }
36. glmDraw(handA, GLM_SMOOTH | GLM_TEXTURE);
37. }
38. void drawhandB(void)
39. {
40. if (!handB) {
41. handB= glmReadOBJ("data/handB.obj");
42. if (!handB) exit(0);
43. glmUnitize(handB);
44. glmFacetNormals(handB);
45. glmVertexNormals(handB, 90.0);
46. }
48. glmDraw(handB, GLM_SMOOTH | GLM_TEXTURE);
49. }
50. float angle = 0; ///加這行, 讓它轉動
51. void display()
52. {
53. glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
54. glPushMatrix(); ///加這行, 讓它轉動
55. glRotatef(angle++, 0, 1, 0); ///加這行, 讓它轉動
56. drawhandA(); //glutSolidTeapot( 0.3 );
57. glPopMatrix(); ///加這行, 讓它轉動
58. glutSwapBuffers();
59. }
61. const GLfloat light_ambient[] = { 0.0f, 0.0f, 0.0f, 1.0f };
62. const GLfloat light_diffuse[] = { 1.0f, 1.0f, 1.0f, 1.0f };
63. const GLfloat light_specular[] = { 1.0f, 1.0f, 1.0f, 1.0f };
64. const GLfloat light_position[] = { 2.0f, 5.0f, -5.0f, 0.0f };///加這行, 讓它轉動
66. const GLfloat mat_ambient[] = { 0.7f, 0.7f, 0.7f, 1.0f };
67. const GLfloat mat_diffuse[] = { 0.8f, 0.8f, 0.8f, 1.0f };
68. const GLfloat mat_specular[] = { 1.0f, 1.0f, 1.0f, 1.0f };
69. const GLfloat high_shininess[] = { 100.0f };
71. int main(int argc, char*argv[])
72. {
73. glutInit(&argc, argv);
74. glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);
75. glutCreateWindow("week08 Gundam");
76. glutDisplayFunc(display);
77. glutIdleFunc(display); ///加這行, 讓它轉動
79. myTexture("data/Diffuse.jpg");
81. glEnable(GL_DEPTH_TEST);
82. glDepthFunc(GL_LESS);
84. glEnable(GL_LIGHT0);
85. glEnable(GL_NORMALIZE);
86. glEnable(GL_COLOR_MATERIAL);
87. glEnable(GL_LIGHTING);
89. glLightfv(GL_LIGHT0, GL_AMBIENT, light_ambient);
90. glLightfv(GL_LIGHT0, GL_DIFFUSE, light_diffuse);
91. glLightfv(GL_LIGHT0, GL_SPECULAR, light_specular);
92. glLightfv(GL_LIGHT0, GL_POSITION, light_position);
94. glMaterialfv(GL_FRONT, GL_AMBIENT, mat_ambient);
95. glMaterialfv(GL_FRONT, GL_DIFFUSE, mat_diffuse);
96. glMaterialfv(GL_FRONT, GL_SPECULAR, mat_specular);
97. glMaterialfv(GL_FRONT, GL_SHININESS, high_shininess);
99. glutMainLoop();
100. }
     
     
     
18.